A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6320-01-155-4807
NSN 6240-00-517-7053
NSN 5915-01-432-8393
NSN 6240-01-419-5626
NSN 6110-00-611-7470
NSN 5930-00-444-3950
NSN 5855-00-446-5921
NSN 6610-00-981-5682
NSN 5915-00-205-2615
NSN 5915-01-195-9871
NSN 6110-00-033-5444
NSN 5905-01-540-7442